EP2009307A1 - Kupplungseinheit - Google Patents

Kupplungseinheit Download PDF

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Publication number
EP2009307A1
EP2009307A1 EP07740891A EP07740891A EP2009307A1 EP 2009307 A1 EP2009307 A1 EP 2009307A1 EP 07740891 A EP07740891 A EP 07740891A EP 07740891 A EP07740891 A EP 07740891A EP 2009307 A1 EP2009307 A1 EP 2009307A1
Authority
EP
European Patent Office
Prior art keywords
input
lever
torque
clutch section
brake
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07740891A
Other languages
English (en)
French (fr)
Other versions
EP2009307A4 (de
EP2009307B1 (de
Inventor
Masahiro Kawai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTN Corp
Original Assignee
NTN Corp
NTN Toyo Bearing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTN Corp, NTN Toyo Bearing Co Ltd filed Critical NTN Corp
Publication of EP2009307A1 publication Critical patent/EP2009307A1/de
Publication of EP2009307A4 publication Critical patent/EP2009307A4/de
Application granted granted Critical
Publication of EP2009307B1 publication Critical patent/EP2009307B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D41/00—Freewheels or freewheel clutches
    • F16D41/06—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface
    • F16D41/08—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action
    • F16D41/10—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing
    • F16D41/105—Freewheels or freewheel clutches with intermediate wedging coupling members between an inner and an outer surface with provision for altering the freewheeling action with self-actuated reversing the intermediate members being of circular cross-section, of only one size and wedging by rolling movement not having an axial component between inner and outer races, one of which is cylindrical

Definitions

  • the present invention relates to a clutch unit having a lever side clutch section transmitting rotational torque from an input side to an output side thereof and a brake side clutch section transmitting rotational torque from the input side to the output side and shutting off reverse input torque from the output side.
  • a clutch section is arranged between the input side member and the output side member, and, in the clutch section, the engagement members such as cylindrical rollers or balls are engaged/disengaged with/from a wedge gap formed between the input side member and the output side member, thereby controlling transmission/interruption of the input torque.
  • a clutch unit of this type is incorporated into a seat lifter section for a vehicle which vertically moves a seat through lever operation.
  • This clutch unit is provided with a lever side clutch section transmitting rotational torque from the input side to the output side and a brake side clutch section transmitting rotational torque from the input side to the output side and shutting off reverse input torque from the output side (see, for example, Patent Documents 1 and 2).
  • Fig. 14 is a sectional view showing the general construction of the conventional clutch unit disclosed in Patent Documents 1 and 2, and Fig. 15 is a right-hand side view of the clutch unit shown in Fig. 14 .
  • Fig. 16 is a sectional view taken along the line C-C of Fig. 14
  • Fig. 17 is a sectional view taken along the line D-D of Fig. 14 .
  • a lever side clutch section 111 mainly includes a lever side outer ring 114 serving as an input side member to which torque is input through lever operation, an inner ring 115 serving as a coupling member transmitting the torque from the lever side outer ring 114 to a brake side clutch section 112, a plurality of cylindrical rollers 116 serving as engagement members controlling transmission/interruption of the input torque from the lever side outer ring 114 through engagement/disengagement between the lever side outer ring 114 and the inner ring 115, a retainer 117 retaining the cylindrical rollers 116 at predetermined circumferential intervals, a brake side outer ring 122 serving as a stationary side member constrained in its rotation, an inner centering spring 118 serving as a first elastic member which is provided between the retainer 117 and the brake side outer ring 122 and accumulates elastic force with input torque from the lever side outer ring 114, restoring the retainer to the neutral state with the accumulated elastic force through releasing the input torque, and an outer centering spring
  • numeral 113 indicates a lever-side side plate fixed to the lever side outer ring 114 by swaging and constituting the input side member together with the lever side outer ring 114
  • numeral 130 indicates a washer mounted to an output shaft 124 through the intermediation of a wave washer 131.
  • the brake side clutch section 112 mainly includes the brake side outer ring 122 serving as a stationary side member constrained in its rotation, the inner ring 115 serving as a coupling member to which torque from the lever side clutch section 111 is input, and a plurality of pairs of cylindrical rollers 125 serving as engagement members arranged in a gap between the brake side outer ring 122 and the output shaft 124, for controlling transmission of input torque from the inner ring 115 and interrupting reverse input torque from the output shaft 124 through engagement/disengagement between the brake side outer ring 122 and the output shaft 124.
  • a flange portion of the inner ring 115 functions as a retainer retaining the cylindrical rollers 125 at predetermined circumferential intervals.
  • numeral 123 indicates a brake-side side plate fixed to the brake side outer ring 122 by swaging and constituting the stationary side member together with the brake side outer ring 122
  • numeral 126 indicates a plate spring of, for example, an N-shaped sectional configuration arranged between the cylindrical rollers 125 of each pair
  • numeral 129 indicates a friction ring serving as a brake member mounted to the brake-side side plate 123.
  • the lever side outer ring 114 which is one of the components forming the lever side clutch section 111 of the conventional clutch unit disclosed in Patent Documents 1 and 2, is formed into a cup-shaped configuration by press working of a single plate-like material.
  • the brake-side outer ring 122 which is one of the components forming the brake side clutch section 112, is also formed into a cup-shaped configuration by press working of a single plate-like material.
  • the lever side outer ring 114 and the brake side outer ring 122 are formed into the cup-shaped configuration by press working, and hence there is a limitation to the thickness of a plate-like material allowing shaping. That is, it is difficult to produce the lever side outer ring 114 and the brake side outer ring 122 by press working of a plate-like material having a thickness that is larger than a fixed thickness.
  • breaking torque is generally used as an index of the strength of a component, and means the maximum torque applied at the point in time when the component suffers breakage.
  • the present invention has been made in view of the above-mentioned problem. It is an object of the present invention to provide a clutch unit in which the strength of the lever side outer ring or the brake side outer ring is increased and in which the elastic deformation amount is reduced to help to easily achieve an improvement in terms of breaking torque.
  • a clutch unit has a structure including: a lever side clutch section provided on an input side, for controlling transmission/interruption of rotational torque to an output side through lever operation; and a brake side clutch section provided on the output side, for transmitting input torque from the lever side clutch section to the output side and interrupting reverse input torque from the output side.
  • the brake side clutch section in the clutch unit includes a coupling member to which the torque from the lever side clutch section is input, an output side member from which torque is output, a stationary side member constrained in its rotation, and a plurality of pairs of engagement members arranged in a gap between the stationary side member and the output side member, for controlling transmission of the input torque from the coupling member and interrupting of the reverse input torque from the output side member through engagement/disengagement between the two members.
  • the lever side clutch section in the clutch unit includes an input side member to which torque is input through lever operation; a coupling member transmitting the torque from the input side member to the brake side clutch section; a plurality of engagement members for controlling transmission/interruption of the input torque from the input side member through engagement/disengagement between the input side member and the coupling member; a retainer retaining the engagement members at predetermined intervals in a circumferential direction; a stationary side member constrained in its rotation; a first elastic member provided between the retainer and the stationary side member, for accumulating elastic force with the input torque from the input side member and restoring the retainer to a neutral state by an accumulated elastic force through releasing of the input torque; a second elastic member provided between the input side member and the stationary side member, for accumulating the elastic force with the input torque from the input side member and restoring the input side member to the neutral state by the accumulated elastic force through releasing of the input torque; and a detachment prevention member press-fitted into the coupling member
  • a first feature of the present invention lies in that the stationary side member of the brake side clutch section forms an outer ring with two members of a thick plate-like member formed by punching and a cover formed by press working, with the plate-like member and the cover being integrally fixed together by swaging by means of a side plate.
  • the stationary side member of the brake side clutch section that is, the brake side outer ring
  • the brake side outer ring is formed by two members of a plate-like member formed by punching and a cover formed by press working.
  • the plate-like member forming the main portion of the brake side outer ring is formed by punching, and hence the thickness of the plate-like member can be increased, making it possible to increase the strength of the brake side outer ring and to reduce the elastic deformation amount, thereby easily achieving an improvement in terms of breaking torque.
  • the function of the conventional brake side outer ring is exerted by the above-mentioned plate-like member and the cover, and hence the brake side outer ring is obtained by integrally fixing the plate-like member and the cover to each other by swaging by means of the side plate.
  • a second feature of the present invention lies in the fact that the input side member of the lever side clutch section is formed by a thick plate-like member formed by punching.
  • the lever side outer ring is formed by a plate-like member formed by punching.
  • the plate-like member forming the lever side outer ring is formed by punching, and hence the thickness of the plate-like member can be increased, making it possible to increase the strength of the lever side outer ring and to reduce the elastic deformation amount, thereby easily achieving an improvement in terms of breaking torque.
  • the stationary side member of the brake side clutch section forms an outer ring with two members of a thick plate-like member formed by punching and a cover formed by press working, and the plate-like member and the cover are integrally fixed to each other by swaging by means of a side plate. Accordingly, it is possible to increase the strength of the brake side outer ring forming the main portion of the stationary side member of the brake side clutch section and to reduce the elastic deformation amount, thereby easily achieving an improvement in terms of breaking torque.
  • the input side member of the lever side clutch section is formed by a thick plate-like member formed by punching. Accordingly, it is possible to increase the strength of the lever side outer ring, which is the input side member of the lever side clutch section, and to reduce the elastic deformation amount, thereby easily achieving an improvement in terms of breaking torque.
  • the strength of the stationary side member of the brake side clutch section or the input side member of the lever side clutch section is increased, and the elastic deformation amount is reduced to thereby easily achieve an improvement in terms of breaking torque. Accordingly, it is possible to increase the strength of the clutch unit, and to reduce the axial dimension of the above-mentioned stationary side member or the input side member, whereby it is possible to achieve a reduction in size and cost of the clutch unit.
  • Fig. 1 is a sectional view showing the general construction of a clutch unit according to an embodiment of the present invention
  • Fig. 2 is a right-hand side view of the clutch unit shown in Fig. 1
  • Fig. 3 is a sectional view taken along the line A-A of Fig. 1
  • Fig. 4 is a sectional view taken along the line B-B of Fig. 1 .
  • This clutch unit includes a lever side clutch section 11 provided on the input side and a brake side clutch section 12 with a reverse input shutting off function provided on the output side.
  • the lever side clutch section 11 has a lever side outer ring 14 serving as an input side member coupled, for example, to a lever (not shown), an inner ring 15 serving as a coupling member, a plurality of cylindrical rollers 16 serving as engagement members, a retainer 17 retaining the cylindrical rollers 16, an inner centering spring 18 which is a first elastic member for restoring the retainer 17 to a neutral state, and an outer centering spring 19 which is a second elastic member for restoring the lever side outer ring 14 to a neutral state (see Fig. 1 ).
  • a washer 30 is press-fitted onto an end portion of a bottomed cylindrical portion 15a of the inner ring 15, thereby preventing detachment of the components.
  • the lever side outer ring 14 is formed of a thick plate-like member formed by punching.
  • a plurality of cam surfaces 14a are formed at equal circumferential intervals (see Fig. 3 ).
  • the inner ring 15 has on its outer side an outer peripheral surface 15a forming a wedge gap 21 between itself and the cam surfaces 14a of the lever side outer ring 14.
  • the retainer 17 has a plurality of pockets 20 accommodating the cylindrical rollers 16.
  • the inner centering spring 18 is arranged on the inner side of the outer centering spring 19 (see Fig. 1 ).
  • the inner centering spring 18, situated on the inner side has a pair of lock portions 18a formed by being bent radially inwards
  • the outer centering spring 19, situated on the outer side has also a pair of lock portions 19a formed by being bent radially inwards.
  • the inner centering spring 18 is arranged between the retainer 17 and a brake side outer ring 22 which is a stationary side member of the brake side clutch portion 12. Both lock portions 18a are locked to the retainer 17, and are locked to a claw portion 22b 1 (see Fig. 5 ) provided on the brake side outer ring 22.
  • the inner centering spring 18 when input torque from the lever side outer ring 14 is exerted, one lock portion 18a is engaged with a part of the retainer 17, and the other lock portion 18a is engaged with the claw portion 22b 1 of the brake side outer ring 22, and hence, as the lever side outer ring 14 rotates, the inner centering spring 18 is pushed open to accumulate elastic force. Further, when the input torque from the lever side outer ring 14 is released, the retainer 17 is restored to the neutral state by the elastic restoring force thereof.
  • the outer centering spring 19 is arranged between a lever-side side plate 13 which is fixed to the lever side outer ring 14 by swaging and a brake-side side plate 23 which is fixed to the brake side outer ring 22 by swaging, with both lock portions 19a being locked to a claw portion 13a provided on the lever-side side plate 13 and locked to a claw portion 23a provided on the brake-side side plate 23.
  • the lock portions 19a are arranged circumferentially out of phase with respect to the lock portions 18a of the inner centering spring 18.
  • the lock portions 19a of the outer centering spring 19 are also bent axially inwards (see Fig. 5 ), whereby bending is effected in the axial direction so as to reduce the axial distance between the portions of the lock portions 19a of the outer centering spring 19 held in contact with the claw portion 13a of the lever-side side plate 13 and the claw portion 23a of the brake-side side plate 23.
  • the so-called lock type brake side clutch section 12 with a reverse input shutting off function mainly includes the inner ring 15 serving as a coupling member to which the torque from the lever side clutch section 11 is input, an output shaft 24 serving as an output side member, the brake side outer ring 22 and the brake-side side plate 23 serving as the stationary side member constrained in their rotation, a plurality of pairs of cylindrical rollers 25 serving as engagement members arranged in the gap between the brake side outer ring 22 and the output shaft 24, for controlling transmission of the input torque from the inner ring 15 and interrupting reverse input torque from the output shaft 24 through engagement/disengagement between both members, and plate springs 26 of, for example, an M-shaped sectional configuration, each provided between the cylindrical rollers 25 of each pair and serving as elastic members imparting repulsive force to the cylindrical rollers 25.
  • a plurality of (e.g., three, in the case of the embodiment shown in Fig. 4 ) cam surfaces 24a are formed on the outer side of the output shaft 24 at equal circumferential intervals, with the cylindrical rollers 25 and the plate springs 26 being arranged in a wedge gap 28 provided between the cam surfaces 24a and the inner peripheral surface 22a 1 of the brake side outer ring 22.
  • a flange portion 15b of the inner ring 15 also serves as a retainer having pockets 27a formed at equal circumferential intervals and accommodating the cylindrical rollers 25 and the plate spring 26.
  • a friction ring 29 serving as a brake member is mounted to the brake-side side plate 23, and the friction ring 29 is press-fitted with interference into the outer peripheral wall of an annular recess 24b of the output shaft 24.
  • the output shaft 24 is provided with a plurality of (three, in the figure) protrusions 24c protruding outwardly.
  • the protrusions 24c are inserted and arranged in the pockets 27b accommodating no cylindrical rollers 25 or plate springs 26 while leaving circumferential clearances.
  • the brake side outer ring 22 is formed by two members of a thick plate-like member 22a formed by punching and a cover 22b formed by press working, with the plate-like member 22a and the cover 22b being integrally fixed to each other by swaging by means of the brake-side side plate 23.
  • the wedge gap 28 is formed between the inner peripheral surface 22a 1 of the brake side outer ring 22 and the cam surfaces 24a of the output shaft 24.
  • the cover 22b of the brake side outer ring 22 has the lock portion 22b 1 (see Fig. 5 ) to be engaged with the inner centering spring 18 of the lever side clutch section 11.
  • Figs. 6(a) and 6(b) show the lever side outer ring 14 of the present invention
  • Figs. 7(a) through 7(c) show the lever side outer ring 114 of the conventional product.
  • the lever side outer ring 14 of the present invention includes a thick plate-like member formed by punching of a single material.
  • the lever side outer ring 114 of the conventional product is formed into a cup-shaped configuration by press working out of a single plate-like member.
  • the lever side outer ring 14 of the present invention there are formed a plurality of cutouts 14b into which claw portions 13b of the lever-side side plate 13 (see Figs. 8 (a) and 8(b) ) are to be inserted.
  • the lever-side side plate 13 and the lever side outer ring 14 are connected to each other.
  • One claw portion 13a 1 of the lever-side side plate 13 arranged between the lock portions 19a of the outer centering spring 19 is inserted into one of cutouts 14c provided in the outer periphery of the lever side outer ring 14.
  • the lever side outer ring 14 of the present invention is formed by punching of a plate-like member, and hence the plate-like member can be thicker (approximately three times as thick as that of the conventional product), making it possible to achieve an improvement in terms of the strength of the lever side outer ring 14 and to reduce the elastic deformation amount to thereby easily achieve an improvement in terms of breaking torque.
  • a flange portion 15b is formed at the opening end of a bottomed cylindrical portion 15a, and, in the outer peripheral edge portion of the flange portion 15b and in the circumferential direction thereof, there are alternately formed a plurality of (three) pockets 27a accommodating the cylindrical rollers 25 and the plate spring 26 and a plurality of (three) pockets 27b accommodating the protrusions 24c of the output shaft 24.
  • An air hole 15c is formed in the bottom surface of the bottomed cylindrical portion 15a.
  • the inner ring 15 By forming the inner ring 15 as a bottomed cylindrical portion, an improvement in terms of strength is achieved. Further, the air hole 15c provided in the bottomed cylindrical portion 15a exerts an air releasing function when mounting the output shaft 24.
  • Figs. 10(a) and 10(b) and Figs. 11 (a) through 11(c) show the plate-like member 22a and the cover 22b forming the brake side outer ring 22 of the present invention
  • Figs. 12(a) through 12(c) show the conventional brake side outer ring 122.
  • the brake side outer ring 22 of the present invention includes two members of a thick plate-like member 22a formed by punching of a single material and a cover 22b formed by press working of a single separate material, with the plate-like member 22a and the cover 22b being integrally fixed to each other by swaging by means of a brake-side side plate 23 shown in Figs. 13(a) and 13(b ).
  • the conventional brake side outer ring 122 is formed into a cup-shaped configuration by press working of a single plate-like material.
  • the plate-like member 22a and the cover 22b are coupled together, and are integrated with the brake-side side plate 23 as the brake side outer ring 22.
  • a claw portion 23a of the brake-side side plate 23 arranged between lock portions 19a of the outer centering spring 19 is inserted into a cutout 22a 3 formed in the outer periphery of the plate-like member 22a and into a cutout 22b 3 formed in the outer periphery of the cover 22b. Further, in the inner periphery of the cover 22b, there is formed an axially protruding claw portion 22b 1 , which is arranged between lock portions 18a of the inner centering spring 18.
  • Numeral 22b 4 in Figs. 11(a) and 11(b) indicates stopper claws provided in the outer periphery of the cover 22b at opposing positions at an angle of 180 degrees with respect to each other, and predetermined circumferential gaps are provided between the stopper claws 22b 4 and the claw portions 13a 2 of the lever-side side plate 13.
  • the rotation of the lever side outer ring 14 is regulated, whereby the lever operation angle is regulated.
  • the brake side outer ring 22 of the present invention is formed by two members of the plate-like member 22a formed by punching and the cover 22b. Accordingly, the plate-like member 22a can be formed relatively thick (approximately three times as thick as the conventional product), the strength of the brake side outer ring 22 is enhanced, and the elastic deformation amount is reduced, thereby easily achieving an improvement in terms of breaking torque.
  • the conventional brake side outer ring 122 is subjected to heat treatment (carburizing and quenching/tempering).
  • heat treatment carrier and quenching/tempering
  • the cover is also subjected to heat treatment.
  • the input torque from the lever side outer ring 14 is input to the inner ring 15 via the lever side clutch section 11, and the inner ring 15 is engaged with the cylindrical rollers 25 to press the same against the elastic force of the plate spring 26, whereby the cylindrical rollers 25 are detached from the wedge gap 28 to release the locked state of the output shaft 24, and the output shaft 24 becomes rotatable.
  • the inner ring 15 further rotates, the gap between the inner ring 15 and the protrusions 24c of the output shaft 24 is reduced, and the inner ring 15 is engaged with the protrusions 24c of the output shaft 24, whereby the input torque from the inner ring 15 is transmitted via the protrusions 24c, and the output shaft 24 rotates.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
EP07740891A 2006-04-19 2007-04-03 Kupplungseinheit Active EP2009307B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006115218A JP4994701B2 (ja) 2006-04-19 2006-04-19 クラッチユニット
PCT/JP2007/057455 WO2007122986A1 (ja) 2006-04-19 2007-04-03 クラッチユニット

Publications (3)

Publication Number Publication Date
EP2009307A1 true EP2009307A1 (de) 2008-12-31
EP2009307A4 EP2009307A4 (de) 2010-12-15
EP2009307B1 EP2009307B1 (de) 2012-08-08

Family

ID=38624894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07740891A Active EP2009307B1 (de) 2006-04-19 2007-04-03 Kupplungseinheit

Country Status (5)

Country Link
US (1) US8113326B2 (de)
EP (1) EP2009307B1 (de)
JP (1) JP4994701B2 (de)
CN (1) CN101427041B (de)
WO (1) WO2007122986A1 (de)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009014046A1 (ja) * 2007-07-24 2009-01-29 Ntn Corporation クラッチユニット
JP4987604B2 (ja) * 2007-07-24 2012-07-25 Ｎｔｎ株式会社 クラッチユニット
EP2264328B1 (de) * 2008-03-06 2014-05-14 NTN Corporation Kupplungseinheit
JP5112114B2 (ja) * 2008-03-06 2013-01-09 Ｎｔｎ株式会社 クラッチユニット
JP4930446B2 (ja) 2008-04-14 2012-05-16 トヨタ自動車株式会社 車両走行制御装置
JP5109943B2 (ja) * 2008-11-25 2012-12-26 株式会社今仙電機製作所 クラッチ装置およびシート装置
JP5187160B2 (ja) * 2008-11-28 2013-04-24 株式会社今仙電機製作所 クラッチ装置およびシート装置
CN104632930B (zh) * 2010-02-18 2018-07-13 Ntn株式会社 离合器单元
JP5717283B2 (ja) 2011-03-09 2015-05-13 Ntn株式会社 クラッチユニット
WO2013034124A1 (de) * 2011-09-08 2013-03-14 Schaeffler Technologies AG & Co. KG Freilaufeinrichtung
JP2014037868A (ja) * 2012-08-17 2014-02-27 Ntn Corp クラッチユニット
JP6232692B2 (ja) * 2012-09-24 2017-11-22 株式会社ジェイテクト トルクリミッタ、風車及び風力発電装置
JP6636366B2 (ja) * 2016-03-22 2020-01-29 Ntn株式会社 クラッチユニット

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700082A (en) * 1970-07-09 1972-10-24 Hy Torq Corp Differential drive mechanism
DE19856634C1 (de) * 1998-12-03 2001-01-18 Brose Fahrzeugteile Beidseitig wirkende Verstellvorrichtung
DE19961639A1 (de) * 1999-12-10 2001-10-18 Brose Fahrzeugteile Beidseitig wirkender Antrieb
JP2003166555A (ja) * 2001-11-30 2003-06-13 Ntn Corp クラッチユニット

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4233779B2 (ja) 2001-09-25 2009-03-04 Ｎｔｎ株式会社 クラッチユニット
JP4509444B2 (ja) * 2001-10-09 2010-07-21 Ｎｔｎ株式会社 座席シート
JP2003240021A (ja) * 2002-02-19 2003-08-27 Ntn Corp 回転伝達装置
JP2004338426A (ja) * 2003-05-13 2004-12-02 Fuji Kiko Co Ltd 車両用シートのハイト調整装置
KR100490313B1 (ko) * 2003-07-12 2005-05-18 주식회사다스 자동차용 시트쿠션 펌핑디바이스

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3700082A (en) * 1970-07-09 1972-10-24 Hy Torq Corp Differential drive mechanism
DE19856634C1 (de) * 1998-12-03 2001-01-18 Brose Fahrzeugteile Beidseitig wirkende Verstellvorrichtung
DE19961639A1 (de) * 1999-12-10 2001-10-18 Brose Fahrzeugteile Beidseitig wirkender Antrieb
JP2003166555A (ja) * 2001-11-30 2003-06-13 Ntn Corp クラッチユニット

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007122986A1 *

Also Published As

Publication number Publication date
US8113326B2 (en) 2012-02-14
EP2009307A4 (de) 2010-12-15
JP4994701B2 (ja) 2012-08-08
WO2007122986A1 (ja) 2007-11-01
JP2007285462A (ja) 2007-11-01
US20100224461A1 (en) 2010-09-09
EP2009307B1 (de) 2012-08-08
CN101427041A (zh) 2009-05-06
CN101427041B (zh) 2012-12-12

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